Results 31 to 40 of about 3,496,599 (369)

Thermoelectric Cycle and the Second Law of Thermodynamics

open access: yesEntropy, 2023
In 2019, Schilling et al. claimed that they achieved the supercooling of a body without external intervention in their thermoelectric experiments, thus arguing that the second law of thermodynamics was bent. Kostic suggested that their claim lacked full comprehension of the second law of thermodynamics.
Ti-Wei Xue, Zeng-Yuan Guo
openaire   +3 more sources

Thermodynamic Cycle Concepts for High-Efficiency Power Plants. Part B: Prosumer and Distributed Power Industry

open access: yesSustainability, 2019
An analysis was carried out for different thermodynamic cycles of power plants with air turbines. A new modification of a gas turbine cycle with the combustion chamber at the turbine outlet has been described in the paper. A special air by-pass system of
K. Kosowski   +5 more
semanticscholar   +1 more source

An Overview of Real Gas Brayton Power Cycles: Working Fluids Selection and Thermodynamic Implications

open access: yesEnergies, 2023
This paper discusses and reviews the main real gas effects on the thermodynamic performance of closed Brayton cycles. Cycles with carbon dioxide as working fluids are taken as a reference and a comparison of the thermodynamic cycle efficiencies that are ...
Costante Mario Invernizzi   +1 more
doaj   +1 more source

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

open access: yesSustainability, 2019
An analysis was carried out for different thermodynamic cycles of power plants with air turbines. Variants with regeneration and different cogeneration systems were considered.
K. Kosowski   +6 more
semanticscholar   +1 more source

The diurnal nature of future extreme precipitation intensification [PDF]

open access: yes, 2019
Short‐duration, high‐impact precipitation events in the extratropics are invariably convective in nature, typically occur during the summer, and are projected to intensify under climate change.
Meredith, Edmund P.   +2 more
core   +1 more source

Improvement of gas turbine engines due to isothermal expansion in the turbine

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
The article presents the results of the study of application of isothermal expansion in the turbine of gas turbine engines as a way of improving the thermodynamic cycle. We present equations of work and ideal cycle efficiency of a gas turbine engine with
M. A. Muraeva, I. M. Gorjunov
doaj   +1 more source

Improving the efficiency of aviation turbofan engines by using an intercooler and a recuperative heat exchanger

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2020
Continuous improvement of fuel efficiency of aircraft engines is the main global trend in modern engine construction. To date, aviation gas turbine engines have reached a high degree of thermodynamic and design-and technology perfection.
H. Omar   +2 more
doaj   +1 more source

An overview on the Miller-Atkinson over-expansion thermodynamic cycle

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
The tightening of pollution and greenhouse gas regulations generated a change in the homologation procedure, i.e., a far more dynamic driving cycle and the testing of the vehicle in real driving conditions are now part of the type approval procedure.
M. Niculae   +3 more
semanticscholar   +1 more source

Alternative thermodynamic cycle for the Stirling machine [PDF]

open access: yes, 2017
We develop an alternative thermodynamic cycle for the Stirling machine, where the polytropic process plays a central role. Analytical expressions for pressure and temperatures of the working gas are obtained as a function of the volume and the parameter ...
A. Romanelli
semanticscholar   +1 more source

Toward the Integrated Design of Organic Rankine Cycle Power Plants: A Method for the Simultaneous Optimization of Working Fluid, Thermodynamic Cycle, and Turbine

open access: yesJournal of Engineering For Gas Turbines and Power, 2019
The conventional design of organic Rankine cycle (ORC) power systems starts with the selection of the working fluid and the subsequent optimization of the corresponding thermodynamic cycle.
M. Lampe   +4 more
semanticscholar   +1 more source

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